Digital alarm clock



FIG. 1 is a perspective view of a digital alarm clock showing my new design;

FIG. 2 is a top plan view thereof, the bottom being conventionally plain and unornamented;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevation view thereof, the left side being a substantially mirror image thereof. 

The ornamental design for a digital alarm clock, as shown and described. 